Wristband containing a whistle



FIG. 1 is a perspective plan view of the wristband containing a whistle;

FIG. 2 is a front plan view;

FIG. 3 is a rear view;

FIG. 4 is a right side view;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view. 

The ornamental design for a wristband containing a whistle, as shown. 